Write a C program to read three numbers and find largest of three numbers using if else statement
Required Knowledge
We will first take three numbers as input from user using scanf function. Then we print the maximum of three numbers on screen.
C program to find maximum of three numbers using If Else statement
It first finds largest of first two numbers and then compares it with third number.
/**
* C program to find maximum of three numbers using
* if else statement
*/
#include <stdio.h>
int main() {
int a, b, c, max;
/*
* Take three numbers as input from user
*/
printf("Enter Three Integers\n");
scanf("%d %d %d", &a, &b, &c);
if(a > b){
// compare a and c
if(a > c)
max = a;
else
max = c;
} else {
// compare b and c
if(b > c)
max = b;
else
max = c;
}
/* Print Maximum Number */
printf("Maximum Number is = %d\n", max);
return 0;
}
Output
Enter Three Integers 2 8 4 Maximum Number is = 8
C program to find largest of three numbers using function
Function getMax takes two numbers as input and returns the largest of two numbers. We will use this function to find largest of three numbers as follows:
/**
* C program to find maximum of three numbers using
* function operator
*/
#include <stdio.h>
/*
*It returns Maximum of two numbers
*/
int getMax(int num1, int num2) {
if (num1 > num2){
return num1;
} else {
return num2;
}
}
int main() {
int a, b, c, max;
/*
* Take three numbers as input from user
*/
printf("Enter Three Integers\n");
scanf("%d %d %d", &a, &b, &c);
max = getMax(getMax(a, b), c);
/* Print Maximum Number */
printf("Maximum Number is = %d\n", max);
return 0;
}
Output
Enter Three Integers 32 45 87 Maximum Number is = 87
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